42019656 has 48 divisors (see below), whose sum is σ = 122203440. Its totient is φ = 12005280.

The previous prime is 42019651. The next prime is 42019657. The reversal of 42019656 is 65691024.

It is not an unprimeable number, because it can be changed into a prime (42019651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16690 + ... + 19041.

It is an arithmetic number, because the mean of its divisors is an integer number (2545905).

Almost surely, 2^42019656 is an apocalyptic number.

It is an amenable number.

42019656 is an abundant number, since it is smaller than the sum of its proper divisors (80183784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42019656 is a wasteful number, since it uses less digits than its factorization.

42019656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35754 (or 35743 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 42019656 is about 6482.2570143431. The cubic root of 42019656 is about 347.6568820472.

The spelling of 42019656 in words is "forty-two million, nineteen thousand, six hundred fifty-six".